A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. This flaw allows a crafted guest driver to execute HW commands when shared buffers are not yet allocated, potentially leading to a use-after-free condition.
Se ha encontrado un fallo en la implementación de QEMU del dispositivo RDMA paravirtual de VMWare. Este defecto permite que un controlador de huésped crafteado ejecute comandos HW cuando los búferes compartidos aún no están asignados, lo que puede llevar a una condición de uso después de la liberación
This update for qemu fixes the following issues. Fixed a memory leak due to a missing virtqueue detach on error. Fixed an use-after-free in nvme DMA reentrancy issue. Fixed a stack overflow due to a DMA reentrancy issue. Fixed a DoS due to an OOB access during mmio operations. Fixed a remote unauthenticated DoS due to an improper I/O watch removal in VNC TLS handshake. Fixed a heap buffer overflow in virtio_crypto_sym_op_helper. Fixed an out-of-bounds write due to an inconsistent check in ati_2d_blt. Fixed an use-after-free in DMA reentrancy issue. Fixed improper access control on special files in 9pfs. Fixed use-after-free issue in pvrdma_exec_cmd. The following non-security bug was fixed. Prepare for binutils update to 2.41 update.
